The AirTAC AirTAC GFR600-20 Filter Regulator 3/4 in NPT, Manual Drain is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/4" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR600-20 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 600-size unit is fitted with 3/4 in NPT ports, a manual drain bowl in aluminium alloy, standard 40 um filtration, an embedded square gauge with MPa scale, and a reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). With manual drainage, the regulation range is 0.05-0.9 MPa (7-130 psi): you drain the bowl by hand on your own schedule, which suits installations that are checked regularly.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including automatic or differential-pressure drains, 5 um filtration (code W), psi or bar gauge scales, G (BSPP) or NPT threads in place of the PT standard, and bracket mounting. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | AirTAC GFR600-20 Filter Regulator 3/4 in NPT, Manual Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Manual drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.05 - 0.9 MPa (7 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR600 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Installed at the 3/4 in supply drop feeding a cartoning or wrapping line, the GFR600-20 removes condensed water and pipe scale from the plant air and holds a steady regulated pressure to the line's directional valves and actuators, with the manual drain emptied during routine shift checks.
On a machine frame where air cylinders clamp, press or form parts, this filter regulator keeps the supply clean and sets the working pressure the tooling was designed for, while the check valve holds the downstream circuit if the upstream supply dips.
Mounted ahead of the manifold that feeds screwdrivers, air balancers and pick-and-place actuators in a manual assembly cell, the unit conditions the incoming air and lets the cell supervisor set one stable pressure for all the tools, read directly off the square MPa gauge.
Size 600 with 3/4 in NPT ports is the largest step in the GFR range, so match it against the air demand of your line: if your consumption sits near or above what a 400-size unit passes at an acceptable pressure drop, step up to 600. Drain type is a real choice here: this unit has a manual drain, which is simple and reliable where someone checks the bowl routinely; choose automatic (code A) or differential-pressure (default) if the unit is inaccessible or unattended. Filtration is standard 40 um; specify 5 um (code W) only where downstream valves or components need finer protection. The square gauge on this unit reads in MPa; psi (scale 2) and bar (scale 3) are orderable alternatives. NPT is confirmed by the T in the code; PT is the catalogue standard and G (BSPP) is the other option. No mounting bracket is included with the J code. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, downstream pressure target and air consumption, and we will confirm the flow figures from the datasheet and check that the 600 size suits your application before you order.
The M in the code GFR60020MJF1TK specifies a manual drain: condensate collected in the aluminium alloy bowl is emptied by hand, which suits installations that are checked regularly. If the unit will sit unattended or in a hard-to-reach spot, order the automatic drain (code A) or the differential-pressure drain (the default, no code) variant instead.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.